String functions

This slide is about Php string functions and how to use them.

1. Created by Nikul Shah
STRING FUNCTIONS
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2. STRLEN()
•<?php
•echo strlen("Hello Nikul!");
•?>

•/*output */
•12

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3. STR_WORD_COUNT()
•<?php
•echo str_word_count("Some people tend to forget that kindness and manners are free.");
•?>


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4. STRREV()
•<?php
•echo strrev("don't loss your hope.");
•?>
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5. STRPOS()
•strpos() function searches for a specific text within a string.
•If a match is found, the function returns the character position of the first match. If no
match is found, it will return FALSE.
•<?php
•echo strpos("Destiny works.", "works");
•?>

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6. STR_REPLACE ------ STRTR
•$search = array('A', 'B', 'C', 'D', 'E');
• $replace = array('B', 'C', 'D', 'E', 'F');
• $subject = 'A';
• $trans = array('A' => 'B','B'=>'C','C'=>'D','D'=>'E','E'=>'F');
• echo str_replace($search, $replace, $subject);
• echo "<br/>";
• echo strtr($subject,$trans);
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7. •<?php

•echo str_replace("Nikul","Shah","Nik shah");

•?>
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8. ADDSLASHES()
•<?php
•$str=addslashes("today is 'monday'");
•echo "$str";
•?>

•//output

•today is \'monday\'
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9. ADDCSLASHES()
•<?php
•$str=addcslashes("Nikul","k");
•echo "$str";
•?>


•Be careful using addcslashes() on 0 (NULL), r (carriage return), n (newline), f (form feed),
t (tab) and v (vertical tab). In PHP, \0, \r, \n, \t, \f and \v are predefined escape sequences.
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10. CHR()
•The chr() function returns a character from the specified ASCII value.
•The ASCII value can be specified in decimal, octal, or hex values. Octal values are
defined by a leading 0, while hex values are defined by a leading 0x.

•<?php
$str = chr(43);
$str2 = chr(61);
echo("2 $str 2 $str2 4");
?>
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11. EXPLODE()
•The explode() function breaks a string into an array.
•Note: The "separator" parameter cannot be an empty string.

•<?php
•$str="Hello my name is 'Nikul'";
•print_r (explode(" ",$str));
•print_r(explode(',',$str,0));
•?>
•Using limits parameter it will returns no of elements.
•This function can not run on echo.

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12. IMPLODE()
•implode() function returns a string from the elements of an array
•<?php
•$str =array('Hello','Nikul','How','are','You?');
•print_r(implode(",",$str));
•?>.
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13. JOIN()
•Joins array into string. Same as implode()
•<?php

•$im=array("nikul","Shah");

•echo (join(" ",$im));

•?>
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14. MD5()
•This function Calculates the MD5 hash of a string.
•<?php
•$im=array("nikul","Shah");
•echo md5(join(" ",$im));
•?>
•4994812ba7d125a30e2b9c04e7b7c014
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15. NL2BR()
•Inserts HTML line breaks in front of each newline in a string

•<?php
•$n="Nikul \nShah";
•echo nl2br($n);

•?>
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16. STR_SPLIT()
•This funciton splits string into an array.
•<?php
•$n="Nikul Shah";
•print_r(str_split($n));
?>

Array ( [0] => N [1] => i [2] => k [3] => u [4] => l [5] => [6] => S [7] => h [8] => a [9] => h )
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17. STRCMP()
•The strcmp() function compares two strings.

•<?php
•echo strcmp("Nikul","Nik");
•?>

•2
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18. STRTOLOWER()
•Converts string from uppercase to lower case.


•<?php
•echo strtolower("Nikul Shah");
•?>
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19. STRTOUPPER()
•Converts string from lowercase to upper case.

•<?php
•echo strtoupper("Nikul Shah");
•?>
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20. TRIM()
•This function removes the while space.
•<?php
•$str = "Nikul Shah!";
•echo $str . "<br>";
•echo trim($str,"Nik");
•?>

•Nikul Shah!
ul Shah!
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21. NUMBER_FORMAT()
•This function formats a number with grouped.
•<?php
•echo number_format("100000",1);
•?>
•100,000.0

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22. RTIRM()
•Removes white space or other char. From right hand side of the string.
•<?php
•$str = "Nikul Shah!";
•echo $str . "<br>";
•echo rtrim($str,"l Sah!");
•?>
•Nikul Shah!
Niku
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23. STR_IREPLACE()
•Replaces some char of the string.
•<?php
•echo str_ireplace("Nikul", "hi","hey hello");
•?>

•hey hello
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24. STR_REPEAT()
•str_repeat() function repeats a string a specified number of times.

•<?php
•echo str_repeat("Nikul",10);
•?>

•NikulNikulNikulNikulNikulNikulNikulNikulNikulNikul

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25. STR_REPLACE()
•<?php
•$r=array("hello","hey", "Nikul","hello");
•print_r(str_replace("hello","hi",$r,$i));
•echo"<br>";
•echo "replacements are :$i";

•?>

•Array ( [0] => hi [1] => hey [2] => Nikul [3] => hi )
replacements are :2
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26. STR_SHUFFLE()
•<?php
•echo str_shuffle("Nikul");
•?>

•ikuNl

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27. STR_WORD_COUNT()
•Counts the word in the string.
•<?php
•echo str_word_count("Nikul Shah");
•?>
•2
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28. STRCASECMP()
<?php
•echo strcasecmp("Nikul","Nikul");
•?>
•0 If this function returns 0, the two strings are equal.
•0 - if the two strings are equal
•<0 - if string1 is less than string2
•>0 - if string1 is greater than string2

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29. STR_PAD()
•<?php
•$str = "Hello Nikul";
•echo str_pad($str,40,".");
•?>

•Hello Nikul.............................
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30. STRCSPN()
•Retruns the no of char found in a string before any part of some specified char are found.

•<?php
•$str = "Hello Nikul";
•echo strcspn($str,"N");
•?>

•6
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31. STRCHR()
•Finds the first occurrence of a string inside another string . Alias strstr().
•This is case sensitive.
•<?php
•$str = "Hello Nikul";
•echo strchr($str,“Nikul");
•?>

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32. STRISTR()
•Finds the first occurrence of a string inside another string . Alias strstr().
•This is case insensitive.
•$str = "Hello Nikul";
•echo strchr($str,“nikul");
•?>

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33. STRIPOS()
•stripos() function finds the position of the first occurrence of a string inside another string.

•<?php
•echo stripos("today is Sunday","Sunday");
•?>
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34. STRSPN()
•Returns the number of characters found in a string that contains only characters from a
specified charlist

•<?php
•echo strspn("Nikul","ikul");
•?>
• 0
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35. CONVERT_UUENCODE()

•<?php
$str = "Hello Nikul!";
echo convert_uuencode($str);
?>

•convert_uudecode()
•$decodeString = convert_uudecode($encodeString);
echo $decodeString;
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36. ENJOYED !!! ???
NEXT ARRAY.



BY NIKUL SHAH
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